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<div class="SECT1"><h1 class="SECT1"><a name="UNSUPPORTED-FEATURES-SQL-STANDARD">D.2. 不支持的特性</a></h1>
<p>下面这些在 SQL:2003 中定义的特定在目前的 PostgreSQL 版本中还没有实现，不过在某些情况下可以获得等效的功能。<div class="INFORMALTABLE"><a name="AEN77196"></a>
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<thead>
<tr><th>标识符</th><th>包</th><th>描述</th><th>注释</th></tr>
</thead>
<tbody>
<tr><td>B011</td><td>&nbsp;</td><td>Embedded Ada</td><td>&nbsp;</td></tr>
<tr><td>B013</td><td>&nbsp;</td><td>Embedded COBOL</td><td>&nbsp;</td></tr>
<tr><td>B014</td><td>&nbsp;</td><td>Embedded Fortran</td><td>&nbsp;</td></tr>
<tr><td>B015</td><td>&nbsp;</td><td>Embedded MUMPS</td><td>&nbsp;</td></tr>
<tr><td>B016</td><td>&nbsp;</td><td>Embedded Pascal</td><td>&nbsp;</td></tr>
<tr><td>B017</td><td>&nbsp;</td><td>Embedded PL/I</td><td>&nbsp;</td></tr>
<tr><td>B031</td><td>&nbsp;</td><td>Basic dynamic SQL</td><td>&nbsp;</td></tr>
<tr><td>B032</td><td>&nbsp;</td><td>Extended dynamic SQL</td><td>&nbsp;</td></tr>
<tr><td>B032-01</td><td>&nbsp;</td><td>&lt;describe input statement&gt;</td><td>&nbsp;</td></tr>
<tr><td>B033</td><td>&nbsp;</td><td>Untyped SQL-invoked function arguments</td><td>&nbsp;</td></tr>
<tr><td>B034</td><td>&nbsp;</td><td>Dynamic specification of cursor attributes</td><td>&nbsp;</td></tr>
<tr><td>B041</td><td>&nbsp;</td><td>Extensions to embedded SQL exception declarations</td><td>&nbsp;</td></tr>
<tr><td>B051</td><td>&nbsp;</td><td>Enhanced execution rights</td><td>&nbsp;</td></tr>
<tr><td>B111</td><td>&nbsp;</td><td>Module language Ada</td><td>&nbsp;</td></tr>
<tr><td>B112</td><td>&nbsp;</td><td>Module language C</td><td>&nbsp;</td></tr>
<tr><td>B113</td><td>&nbsp;</td><td>Module language COBOL</td><td>&nbsp;</td></tr>
<tr><td>B114</td><td>&nbsp;</td><td>Module language Fortran</td><td>&nbsp;</td></tr>
<tr><td>B115</td><td>&nbsp;</td><td>Module language MUMPS</td><td>&nbsp;</td></tr>
<tr><td>B116</td><td>&nbsp;</td><td>Module language Pascal</td><td>&nbsp;</td></tr>
<tr><td>B117</td><td>&nbsp;</td><td>Module language PL/I</td><td>&nbsp;</td></tr>
<tr><td>B121</td><td>&nbsp;</td><td>Routine language Ada</td><td>&nbsp;</td></tr>
<tr><td>B122</td><td>&nbsp;</td><td>Routine language C</td><td>&nbsp;</td></tr>
<tr><td>B123</td><td>&nbsp;</td><td>Routine language COBOL</td><td>&nbsp;</td></tr>
<tr><td>B124</td><td>&nbsp;</td><td>Routine language Fortran</td><td>&nbsp;</td></tr>
<tr><td>B125</td><td>&nbsp;</td><td>Routine language MUMPS</td><td>&nbsp;</td></tr>
<tr><td>B126</td><td>&nbsp;</td><td>Routine language Pascal</td><td>&nbsp;</td></tr>
<tr><td>B127</td><td>&nbsp;</td><td>Routine language PL/I</td><td>&nbsp;</td></tr>
<tr><td>B128</td><td>&nbsp;</td><td>Routine language SQL</td><td>&nbsp;</td></tr>
<tr><td>C011</td><td>核心</td><td>Call-Level Interface</td><td>&nbsp;</td></tr>
<tr><td>E081</td><td>核心</td><td>Basic Privileges</td><td>&nbsp;</td></tr>
<tr><td>E081-05</td><td>核心</td><td>UPDATE privilege at the column level</td><td>&nbsp;</td></tr>
<tr><td>E081-07</td><td>核心</td><td>REFERENCES privilege at the column level</td><td>&nbsp;</td></tr>
<tr><td>E081-09</td><td>核心</td><td>USAGE privilege</td><td>&nbsp;</td></tr>
<tr><td>E121</td><td>核心</td><td>Basic cursor support</td><td>&nbsp;</td></tr>
<tr><td>E121-06</td><td>核心</td><td>Positioned UPDATE statement</td><td>&nbsp;</td></tr>
<tr><td>E121-07</td><td>核心</td><td>Positioned DELETE statement</td><td>&nbsp;</td></tr>
<tr><td>E153</td><td>核心</td><td>Updatable queries with subqueries</td><td>&nbsp;</td></tr>
<tr><td>E182</td><td>核心</td><td>Module language</td><td>&nbsp;</td></tr>
<tr><td>F121</td><td>&nbsp;</td><td>Basic diagnostics management</td><td>&nbsp;</td></tr>
<tr><td>F121-01</td><td>&nbsp;</td><td>GET DIAGNOSTICS statement</td><td>&nbsp;</td></tr>
<tr><td>F121-02</td><td>&nbsp;</td><td>SET TRANSACTION statement: DIAGNOSTICS SIZE clause</td><td>&nbsp;</td></tr>
<tr><td>F181</td><td>核心</td><td>Multiple module support</td><td>&nbsp;</td></tr>
<tr><td>F262</td><td>&nbsp;</td><td>Extended CASE expression</td><td>&nbsp;</td></tr>
<tr><td>F263</td><td>&nbsp;</td><td>Comma-separated predicates in simple CASE expression</td><td>&nbsp;</td></tr>
<tr><td>F291</td><td>&nbsp;</td><td>UNIQUE predicate</td><td>&nbsp;</td></tr>
<tr><td>F301</td><td>&nbsp;</td><td>CORRESPONDING in query expressions</td><td>&nbsp;</td></tr>
<tr><td>F311</td><td>核心</td><td>Schema definition statement</td><td>&nbsp;</td></tr>
<tr><td>F311-04</td><td>核心</td><td>CREATE VIEW: WITH CHECK OPTION</td><td>&nbsp;</td></tr>
<tr><td>F312</td><td>&nbsp;</td><td>MERGE statement</td><td>&nbsp;</td></tr>
<tr><td>F341</td><td>&nbsp;</td><td>Usage tables</td><td>&nbsp;</td></tr>
<tr><td>F392</td><td>&nbsp;</td><td>Unicode escapes in identifiers</td><td>&nbsp;</td></tr>
<tr><td>F393</td><td>&nbsp;</td><td>Unicode escapes in literals</td><td>&nbsp;</td></tr>
<tr><td>F402</td><td>&nbsp;</td><td>Named column joins for LOBs, arrays, and multisets</td><td>&nbsp;</td></tr>
<tr><td>F442</td><td>&nbsp;</td><td>Mixed column references in set functions</td><td>&nbsp;</td></tr>
<tr><td>F451</td><td>&nbsp;</td><td>Character set definition</td><td>&nbsp;</td></tr>
<tr><td>F461</td><td>&nbsp;</td><td>Named character sets</td><td>&nbsp;</td></tr>
<tr><td>F521</td><td>增强完整性管理</td><td>Assertions</td><td>&nbsp;</td></tr>
<tr><td>F641</td><td>&nbsp;</td><td>Row and table constructors</td><td>&nbsp;</td></tr>
<tr><td>F661</td><td>&nbsp;</td><td>Simple tables</td><td>&nbsp;</td></tr>
<tr><td>F671</td><td>增强完整性管理</td><td>Subqueries in CHECK</td><td>intentionally omitted</td></tr>
<tr><td>F691</td><td>&nbsp;</td><td>Collation and translation</td><td>&nbsp;</td></tr>
<tr><td>F692</td><td>&nbsp;</td><td>Enhanced collation support</td><td>&nbsp;</td></tr>
<tr><td>F693</td><td>&nbsp;</td><td>SQL-session and client module collations</td><td>&nbsp;</td></tr>
<tr><td>F695</td><td>&nbsp;</td><td>Translation support</td><td>&nbsp;</td></tr>
<tr><td>F696</td><td>&nbsp;</td><td>Additional translation documentation</td><td>&nbsp;</td></tr>
<tr><td>F721</td><td>&nbsp;</td><td>Deferrable constraints</td><td>foreign keys only</td></tr>
<tr><td>F731</td><td>&nbsp;</td><td>INSERT column privileges</td><td>&nbsp;</td></tr>
<tr><td>F741</td><td>&nbsp;</td><td>Referential MATCH types</td><td>no partial match yet</td></tr>
<tr><td>F751</td><td>&nbsp;</td><td>View CHECK enhancements</td><td>&nbsp;</td></tr>
<tr><td>F811</td><td>&nbsp;</td><td>Extended flagging</td><td>&nbsp;</td></tr>
<tr><td>F812</td><td>核心</td><td>Basic flagging</td><td>&nbsp;</td></tr>
<tr><td>F813</td><td>&nbsp;</td><td>Extended flagging</td><td>&nbsp;</td></tr>
<tr><td>F821</td><td>&nbsp;</td><td>Local table references</td><td>&nbsp;</td></tr>
<tr><td>F831</td><td>&nbsp;</td><td>Full cursor update</td><td>&nbsp;</td></tr>
<tr><td>F831-01</td><td>&nbsp;</td><td>Updatable scrollable cursors</td><td>&nbsp;</td></tr>
<tr><td>F831-02</td><td>&nbsp;</td><td>Updatable ordered cursors</td><td>&nbsp;</td></tr>
<tr><td>S011</td><td>核心</td><td>Distinct data types</td><td>&nbsp;</td></tr>
<tr><td>S011-01</td><td>核心</td><td>USER_DEFINED_TYPES view</td><td>&nbsp;</td></tr>
<tr><td>S023</td><td>基本的对象支持</td><td>Basic structured types</td><td>&nbsp;</td></tr>
<tr><td>S024</td><td>增强的对象支持</td><td>Enhanced structured types</td><td>&nbsp;</td></tr>
<tr><td>S025</td><td>&nbsp;</td><td>Final structured types</td><td>&nbsp;</td></tr>
<tr><td>S026</td><td>&nbsp;</td><td>Self-referencing structured types</td><td>&nbsp;</td></tr>
<tr><td>S027</td><td>&nbsp;</td><td>Create method by specific method name</td><td>&nbsp;</td></tr>
<tr><td>S028</td><td>&nbsp;</td><td>Permutable UDT options list</td><td>&nbsp;</td></tr>
<tr><td>S041</td><td>基本的对象支持</td><td>Basic reference types</td><td>&nbsp;</td></tr>
<tr><td>S043</td><td>增强的对象支持</td><td>Enhanced reference types</td><td>&nbsp;</td></tr>
<tr><td>S051</td><td>基本的对象支持</td><td>Create table of type</td><td>&nbsp;</td></tr>
<tr><td>S081</td><td>增强的对象支持</td><td>Subtables</td><td>&nbsp;</td></tr>
<tr><td>S091</td><td>&nbsp;</td><td>Basic array support</td><td>&nbsp;</td></tr>
<tr><td>S091-01</td><td>&nbsp;</td><td>Arrays of built-in data types</td><td>&nbsp;</td></tr>
<tr><td>S091-02</td><td>&nbsp;</td><td>Arrays of distinct types</td><td>&nbsp;</td></tr>
<tr><td>S091-03</td><td>&nbsp;</td><td>Array expressions</td><td>&nbsp;</td></tr>
<tr><td>S092</td><td>&nbsp;</td><td>Arrays of user-defined types</td><td>&nbsp;</td></tr>
<tr><td>S094</td><td>&nbsp;</td><td>Arrays of reference types</td><td>&nbsp;</td></tr>
<tr><td>S095</td><td>&nbsp;</td><td>Array constructors by query</td><td>&nbsp;</td></tr>
<tr><td>S096</td><td>&nbsp;</td><td>Optional array bounds</td><td>&nbsp;</td></tr>
<tr><td>S097</td><td>&nbsp;</td><td>Array element assignment</td><td>&nbsp;</td></tr>
<tr><td>S151</td><td>基本的对象支持</td><td>Type predicate</td><td>&nbsp;</td></tr>
<tr><td>S161</td><td>增强的对象支持</td><td>Subtype treatment</td><td>&nbsp;</td></tr>
<tr><td>S162</td><td>&nbsp;</td><td>Subtype treatment for references</td><td>&nbsp;</td></tr>
<tr><td>S201</td><td>&nbsp;</td><td>SQL-invoked routines on arrays</td><td>&nbsp;</td></tr>
<tr><td>S201-01</td><td>&nbsp;</td><td>Array parameters</td><td>&nbsp;</td></tr>
<tr><td>S201-02</td><td>&nbsp;</td><td>Array as result type of functions</td><td>&nbsp;</td></tr>
<tr><td>S202</td><td>&nbsp;</td><td>SQL-invoked routines on multisets</td><td>&nbsp;</td></tr>
<tr><td>S231</td><td>增强的对象支持</td><td>Structured type locators</td><td>&nbsp;</td></tr>
<tr><td>S232</td><td>&nbsp;</td><td>Array locators</td><td>&nbsp;</td></tr>
<tr><td>S233</td><td>&nbsp;</td><td>Multiset locators</td><td>&nbsp;</td></tr>
<tr><td>S241</td><td>&nbsp;</td><td>Transform functions</td><td>&nbsp;</td></tr>
<tr><td>S242</td><td>&nbsp;</td><td>Alter transform statement</td><td>&nbsp;</td></tr>
<tr><td>S251</td><td>&nbsp;</td><td>User-defined orderings</td><td>&nbsp;</td></tr>
<tr><td>S261</td><td>&nbsp;</td><td>Specific type method</td><td>&nbsp;</td></tr>
<tr><td>S271</td><td>&nbsp;</td><td>Basic multiset support</td><td>&nbsp;</td></tr>
<tr><td>S272</td><td>&nbsp;</td><td>Multisets of user-defined types</td><td>&nbsp;</td></tr>
<tr><td>S274</td><td>&nbsp;</td><td>Multisets of reference types</td><td>&nbsp;</td></tr>
<tr><td>S275</td><td>&nbsp;</td><td>Advanced multiset support</td><td>&nbsp;</td></tr>
<tr><td>S281</td><td>&nbsp;</td><td>Nested collection types</td><td>&nbsp;</td></tr>
<tr><td>S291</td><td>&nbsp;</td><td>Unique constraint on entire row</td><td>&nbsp;</td></tr>
<tr><td>T011</td><td>&nbsp;</td><td>Timestamp in Information Schema</td><td>&nbsp;</td></tr>
<tr><td>T041</td><td>基本的对象支持</td><td>Basic LOB data type support</td><td>&nbsp;</td></tr>
<tr><td>T041-01</td><td>基本的对象支持</td><td>BLOB data type</td><td>&nbsp;</td></tr>
<tr><td>T041-02</td><td>基本的对象支持</td><td>CLOB data type</td><td>&nbsp;</td></tr>
<tr><td>T041-03</td><td>基本的对象支持</td><td>POSITION, LENGTH, LOWER, TRIM, UPPER, and SUBSTRING functions for LOB data types</td><td>&nbsp;</td></tr>
<tr><td>T041-04</td><td>基本的对象支持</td><td>Concatenation of LOB data types</td><td>&nbsp;</td></tr>
<tr><td>T041-05</td><td>基本的对象支持</td><td>LOB locator: non-holdable</td><td>&nbsp;</td></tr>
<tr><td>T042</td><td>&nbsp;</td><td>Extended LOB data type support</td><td>&nbsp;</td></tr>
<tr><td>T051</td><td>&nbsp;</td><td>Row types</td><td>&nbsp;</td></tr>
<tr><td>T052</td><td>&nbsp;</td><td>MAX and MIN for Row types</td><td>&nbsp;</td></tr>
<tr><td>T053</td><td>&nbsp;</td><td>Explicit aliases for all-fields reference</td><td>&nbsp;</td></tr>
<tr><td>T061</td><td>&nbsp;</td><td>UCS support</td><td>&nbsp;</td></tr>
<tr><td>T111</td><td>&nbsp;</td><td>Updatable joins, unions, and columns</td><td>&nbsp;</td></tr>
<tr><td>T121</td><td>&nbsp;</td><td>WITH (excluding RECURSIVE) in query expression</td><td>&nbsp;</td></tr>
<tr><td>T122</td><td>&nbsp;</td><td>WITH (excluding RECURSIVE) in subquery</td><td>&nbsp;</td></tr>
<tr><td>T131</td><td>&nbsp;</td><td>Recursive query</td><td>&nbsp;</td></tr>
<tr><td>T132</td><td>&nbsp;</td><td>Recursive query in subquery</td><td>&nbsp;</td></tr>
<tr><td>T152</td><td>&nbsp;</td><td>DISTINCT predicate with negation</td><td>&nbsp;</td></tr>
<tr><td>T172</td><td>&nbsp;</td><td>AS subquery clause in table definition</td><td>&nbsp;</td></tr>
<tr><td>T173</td><td>&nbsp;</td><td>Extended LIKE clause in table definition</td><td>&nbsp;</td></tr>
<tr><td>T174</td><td>&nbsp;</td><td>Identity columns</td><td>&nbsp;</td></tr>
<tr><td>T175</td><td>&nbsp;</td><td>Generated columns</td><td>&nbsp;</td></tr>
<tr><td>T176</td><td>&nbsp;</td><td>Sequence generator support</td><td>&nbsp;</td></tr>
<tr><td>T211</td><td>激活数据库，增强完整性管理</td><td>Basic trigger capability</td><td>&nbsp;</td></tr>
<tr><td>T211-05</td><td>激活数据库，增强完整性管理</td><td>Ability to specify a search condition that must be true before the trigger is invoked</td><td>&nbsp;</td></tr>
<tr><td>T211-06</td><td>激活数据库，增强完整性管理</td><td>Support for run-time rules for the interaction of triggers and constraints</td><td>&nbsp;</td></tr>
<tr><td>T211-08</td><td>激活数据库，增强完整性管理</td><td>Multiple triggers for the same event are executed in the order in which they were created in the catalog</td><td>intentionally omitted</td></tr>
<tr><td>T251</td><td>&nbsp;</td><td>SET TRANSACTION statement: LOCAL option</td><td>&nbsp;</td></tr>
<tr><td>T261</td><td>&nbsp;</td><td>Chained transactions</td><td>&nbsp;</td></tr>
<tr><td>T272</td><td>&nbsp;</td><td>Enhanced savepoint management</td><td>&nbsp;</td></tr>
<tr><td>T281</td><td>&nbsp;</td><td>SELECT privilege with column granularity</td><td>&nbsp;</td></tr>
<tr><td>T301</td><td>&nbsp;</td><td>Functional dependencies</td><td>&nbsp;</td></tr>
<tr><td>T321</td><td>核心</td><td>Basic SQL-invoked routines</td><td>&nbsp;</td></tr>
<tr><td>T321-02</td><td>核心</td><td>User-defined stored procedures with no overloading</td><td>&nbsp;</td></tr>
<tr><td>T321-04</td><td>核心</td><td>CALL statement</td><td>&nbsp;</td></tr>
<tr><td>T321-05</td><td>核心</td><td>RETURN statement</td><td>&nbsp;</td></tr>
<tr><td>T324</td><td>&nbsp;</td><td>Explicit security for SQL routines</td><td>&nbsp;</td></tr>
<tr><td>T325</td><td>&nbsp;</td><td>Qualified SQL parameter references</td><td>&nbsp;</td></tr>
<tr><td>T326</td><td>&nbsp;</td><td>Table functions</td><td>&nbsp;</td></tr>
<tr><td>T331</td><td>&nbsp;</td><td>Basic roles</td><td>&nbsp;</td></tr>
<tr><td>T332</td><td>&nbsp;</td><td>Extended roles</td><td>&nbsp;</td></tr>
<tr><td>T401</td><td>&nbsp;</td><td>INSERT into a cursor</td><td>&nbsp;</td></tr>
<tr><td>T411</td><td>&nbsp;</td><td>UPDATE statement: SET ROW option</td><td>&nbsp;</td></tr>
<tr><td>T431</td><td>OLAP</td><td>Extended grouping capabilities</td><td>&nbsp;</td></tr>
<tr><td>T432</td><td>&nbsp;</td><td>Nested and concatenated GROUPING SETS</td><td>&nbsp;</td></tr>
<tr><td>T433</td><td>&nbsp;</td><td>Multiargument GROUPING function</td><td>&nbsp;</td></tr>
<tr><td>T434</td><td>&nbsp;</td><td>GROUP BY DISTINCT</td><td>&nbsp;</td></tr>
<tr><td>T471</td><td>&nbsp;</td><td>Result sets return value</td><td>&nbsp;</td></tr>
<tr><td>T491</td><td>&nbsp;</td><td>LATERAL derived table</td><td>&nbsp;</td></tr>
<tr><td>T511</td><td>&nbsp;</td><td>Transaction counts</td><td>&nbsp;</td></tr>
<tr><td>T541</td><td>&nbsp;</td><td>Updatable table references</td><td>&nbsp;</td></tr>
<tr><td>T561</td><td>&nbsp;</td><td>Holdable locators</td><td>&nbsp;</td></tr>
<tr><td>T571</td><td>&nbsp;</td><td>Array-returning external SQL-invoked functions</td><td>&nbsp;</td></tr>
<tr><td>T572</td><td>&nbsp;</td><td>Multiset-returning external SQL-invoked functions</td><td>&nbsp;</td></tr>
<tr><td>T601</td><td>&nbsp;</td><td>Local cursor references</td><td>&nbsp;</td></tr>
<tr><td>T611</td><td>OLAP</td><td>Elementary OLAP operations</td><td>&nbsp;</td></tr>
<tr><td>T612</td><td>&nbsp;</td><td>Advanced OLAP operations</td><td>&nbsp;</td></tr>
<tr><td>T613</td><td>&nbsp;</td><td>Sampling</td><td>&nbsp;</td></tr>
<tr><td>T621</td><td>&nbsp;</td><td>Enhanced numeric functions</td><td>&nbsp;</td></tr>
<tr><td>T631</td><td>核心</td><td>IN predicate with one list element</td><td>&nbsp;</td></tr>
<tr><td>T641</td><td>&nbsp;</td><td>Multiple column assignment</td><td>&nbsp;</td></tr>
<tr><td>T651</td><td>&nbsp;</td><td>SQL-schema statements in SQL routines</td><td>&nbsp;</td></tr>
<tr><td>T652</td><td>&nbsp;</td><td>SQL-dynamic statements in SQL routines</td><td>&nbsp;</td></tr>
<tr><td>T653</td><td>&nbsp;</td><td>SQL-schema statements in external routines</td><td>&nbsp;</td></tr>
<tr><td>T654</td><td>&nbsp;</td><td>SQL-dynamic statements in external routines</td><td>&nbsp;</td></tr>
<tr><td>T655</td><td>&nbsp;</td><td>Cyclically dependent routines</td><td>&nbsp;</td></tr>
</tbody>
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